This paper mainly presents a HIRFL-Cryopump temperature monitoring system by describing the architecture of the whole hardware system and the designing of its software system. We use a self-designed protocol converter as a bridge to connect to a vacuum device. This converter can convert serial port signals to network signals which we need in the central control room. The software part is created in ForceControl configuration platform, so the driver development is one of the most important jobs in the software design process. The driver codes are debugged and passed in Visual C++. Through two years running, it shows that the driver is correct and efficient. Overall, we believe that this system provides a cost-effective monitoring service with acceptable user experience.